Cooling device



FIG. 1 is a top front perspective view of a cooling device showing mynew design;

FIG. 2 is a top plan view thereof, the bottom plan view is not shown asit is flat and unornamented;

FIG. 3 is a left side elevation view thereof, the right side elevationview being identical thereto; and,

FIG. 4 is a front elevation view thereof.

The ornamental design for a cooling device, as shown and described.